new files required for heroku cedar
Change Procfile to unicorn
gemfile to unicorn
fixed ruby version
fixed ruby version
fixed rubyzip version
fixed aws paperclip version
change url staging
try acumbamail smtp
added html mails
fixed html email
fixed html utf8 email
problem with temporary file heroku
added x-sendfile-header to heroku
added dates to proposals view page
added more data in signature applet errors
try to fix a localization date error